We estimate the number of users by analyzing the requests induced by clients to relays and bridges.
This graph shows the estimated number of clients connecting via bridges. These numbers are derived from directory requests counted on bridges. Bridges resolve client IP addresses of incoming directory requests to country codes, so that graphs are available for most countries. For further details see these questions and answers about user statistics.
The following events have been manually collected on this wiki page and might be related to the displayed graph.
|Dates||Places/Protocols||Description and Links|
|2016-10-28||meek||Decreased the rate limit on the meek-amazon bridge to 1.0 MB/s, from 3.0 MB/s.|
|2016-10-19 to 2016-11-10||meek||Large decrease in meek users, perhaps caused by problems in Orbot 15.0.2 BETA 1 that were fixed in Orbot 15.2.0 RC8.|
TicketInitial emailFollowup emailOrbot mail
|2016-10-05||ipv4 ipv6||geoip and geoip6 databases updated to "October 4 2016 Maxmind GeoLite2 Country" (|
|2016-09-28||meek||Rate limit on the meek-amazon bridge returns to 3.0 MB/s, having been set to about 1.0 MB/s for some time, cause uncertain.|
|2016-09-24||obfs3||Default obfs3 bridge LeifEricson upgrades and begins reporting statistics to the new bridge authority Bifroest. This is the last obfs3 bridge that hadn't upgraded.|
|2016-09-24||obfs4||Default obfs4 bridge LeifEricson upgrades and begins reporting statistics to the new bridge authority Bifroest. This is the last obfs4 bridge that hadn't upgraded.|
|2016-09-23||obfs3||Default obfs3 bridges ndnop0 and ndnop2 upgrade and begin reporting statistics to the new bridge authority Bifroest.|
Post on bridges not reporting statistics
|2016-09-23||obfs4||Default obfs3 bridges ndnop3 and ndnop5 upgrade and begin reporting statistics to the new bridge authority Bifroest.|
Post on bridges not reporting statistics
|2016-09-23||obfs3||Default obfs3 bridges "Unnamed" and "Unnamed" (fingerprint AF9F66B7B04F8FF6F32D455F05135250A16543C9) upgrade and begin reporting statistics to the new bridge authority Bifroest.|
|2016-09-23 to 2016-11-28||obfs3||Outage of default obfs3 bridges "Unnamed" and "Unnamed" (fingerprint AF9F66B7B04F8FF6F32D455F05135250A16543C9). (Start date not known for sure, though it must have been after 2016-09-23; discussed in non-archived tor-team email.)|
|2016-09-20||meek||macOS 10.12 (Sierra) is released, breaking some programs that are built with Go <1.7, including the meek-client that comes with Tor Browser. (See 2016-11-15 unbreaking event.)|
|2016-09-07||ipv4 ipv6||geoip and geoip6 databases updated to "September 6 2016 Maxmind GeoLite2 Country" (|
|2016-09-02||Bridges||The former bridge authority Tonga shuts down. Bridges that have not updated to tor 0.2.8.7 or 0.2.9.2-alpha (which include all 5 default obfs3 bridges and 3/16 default obfs4 bridges) stop reporting statistics.|
Shutdown noticeBlog postLoss of reporting bridges
|2016-08-31||Bridges||CollecTor begins publishing bridge stats from the new bridge authority Bifroest.|
|2016-08-24||Bridges||tor 0.2.8.7 and 0.2.9.2-alpha are released, changing the bridge authority from Tonga to Bifroest.|
|2016-08-24||China <OR> Unknown||Large decrease in users in China.|
|2016-08-18||meek||Changed the meek-amazon CDN price class from "All" to "Use Only US, Canada and Europe."|
|2016-08-12||ipv4 ipv6||geoip and geoip6 databases updated to "August 2 2016 Maxmind GeoLite2 Country" (|
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